// LordHavoc: some portable directory listing code I wrote for lmp2pcx, now used in darkplaces to load id1/*.pak and such...
-int matchpattern(char *in, char *pattern, int caseinsensitive)
+int matchpattern(const char *in, const char *pattern, int caseinsensitive)
{
int c1, c2;
while (*pattern)
return 1; // success
}
-// a little chained strings system
-stringlist_t *stringlistappend(stringlist_t *current, char *text)
+// a little strings system
+void stringlistinit(stringlist_t *list)
{
- stringlist_t *newitem;
- newitem = (stringlist_t *)Z_Malloc(strlen(text) + 1 + sizeof(stringlist_t));
- newitem->next = NULL;
- newitem->text = (char *)(newitem + 1);
- strcpy(newitem->text, text);
- if (current)
- current->next = newitem;
- return newitem;
+ memset(list, 0, sizeof(*list));
}
-void stringlistfree(stringlist_t *current)
+void stringlistfreecontents(stringlist_t *list)
{
- stringlist_t *next;
- while (current)
+ int i;
+ for (i = 0;i < list->numstrings;i++)
{
- next = current->next;
- Z_Free(current);
- current = next;
+ if (list->strings[i])
+ Z_Free(list->strings[i]);
+ list->strings[i] = NULL;
}
+ list->numstrings = 0;
+ list->maxstrings = 0;
+ if (list->strings)
+ Z_Free(list->strings);
}
-stringlist_t *stringlistsort(stringlist_t *start)
+void stringlistappend(stringlist_t *list, char *text)
{
- int notdone;
- stringlist_t *current, *previous, *temp2, *temp3, *temp4;
- // exit early if there's nothing to sort
- if (start == NULL || start->next == NULL)
- return start;
- notdone = 1;
- while (notdone)
+ size_t textlen;
+ char **oldstrings;
+
+ if (list->numstrings >= list->maxstrings)
{
- current = start;
- notdone = 0;
- previous = NULL;
- while (current && current->next)
+ oldstrings = list->strings;
+ list->maxstrings += 4096;
+ list->strings = Z_Malloc(list->maxstrings * sizeof(*list->strings));
+ if (list->numstrings)
+ memcpy(list->strings, oldstrings, list->numstrings * sizeof(*list->strings));
+ if (oldstrings)
+ Z_Free(oldstrings);
+ }
+ textlen = strlen(text) + 1;
+ list->strings[list->numstrings] = Z_Malloc(textlen);
+ memcpy(list->strings[list->numstrings], text, textlen);
+ list->numstrings++;
+}
+
+void stringlistsort(stringlist_t *list)
+{
+ int i, j;
+ char *temp;
+ // this is a selection sort (finds the best entry for each slot)
+ for (i = 0;i < list->numstrings - 1;i++)
+ {
+ for (j = i + 1;j < list->numstrings;j++)
{
- if (strcmp(current->text, current->next->text) > 0)
+ if (strcasecmp(list->strings[i], list->strings[j]) > 0)
{
- // current is greater than next
- notdone = 1;
- temp2 = current->next;
- temp3 = current;
- temp4 = current->next->next;
- if (previous)
- previous->next = temp2;
- else
- start = temp2;
- temp2->next = temp3;
- temp3->next = temp4;
- break;
+ temp = list->strings[i];
+ list->strings[i] = list->strings[j];
+ list->strings[j] = temp;
}
- previous = current;
- current = current->next;
}
}
- return start;
}
// operating system specific code
#ifdef WIN32
#include <io.h>
-stringlist_t *listdirectory(const char *path)
+void listdirectory(stringlist_t *list, const char *path)
{
+ int i;
char pattern[4096], *c;
struct _finddata_t n_file;
long hFile;
- stringlist_t *start, *current;
strlcpy (pattern, path, sizeof (pattern));
strlcat (pattern, "*", sizeof (pattern));
// ask for the directory listing handle
hFile = _findfirst(pattern, &n_file);
if(hFile == -1)
- return NULL;
+ return;
// start a new chain with the the first name
- start = current = stringlistappend(NULL, n_file.name);
+ stringlistappend(list, n_file.name);
// iterate through the directory
while (_findnext(hFile, &n_file) == 0)
- current = stringlistappend(current, n_file.name);
+ stringlistappend(list, n_file.name);
_findclose(hFile);
// convert names to lowercase because windows does not care, but pattern matching code often does
- for (current = start;current;current = current->next)
- for (c = current->text;*c;c++)
+ for (i = 0;i < list->numstrings;i++)
+ for (c = list->strings[i];*c;c++)
if (*c >= 'A' && *c <= 'Z')
*c += 'a' - 'A';
-
- // sort the list alphanumerically
- return stringlistsort(start);
}
#else
#include <dirent.h>
-stringlist_t *listdirectory(const char *path)
+void listdirectory(stringlist_t *list, const char *path)
{
DIR *dir;
struct dirent *ent;
- stringlist_t *start, *current;
dir = opendir(path);
if (!dir)
- return NULL;
- start = current = NULL;
+ return;
while ((ent = readdir(dir)))
- {
if (strcmp(ent->d_name, ".") && strcmp(ent->d_name, ".."))
- {
- current = stringlistappend(current, ent->d_name);
- if (!start)
- start = current;
- }
- }
+ stringlistappend(list, ent->d_name);
closedir(dir);
- // sort the list alphanumerically
- return stringlistsort(start);
}
#endif
-void freedirectory(stringlist_t *list)
-{
- stringlistfree(list);
-}
-